Modified fracture properties of cement composites with nano/micro carbonized bagasse fibers

A novel cost-effective alternative in the form of nano/micro carbonized particles produced from waste bagasse fibers has been explored to modify the mechanical properties and fracture pattern of the resulting cementitious composites. Carbonized bagasse particles were produced at Politecnico di Tor...

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Main Authors: Rao Arsalan Khushnood, Sajjad Ahmad, Giuseppe Andrea Ferro, Luciana Restuccia, Jean Marc Tulliani, Pravin Jagdale
Format: Article
Language:English
Published: Gruppo Italiano Frattura 2015-10-01
Series:Fracture and Structural Integrity
Subjects:
Online Access:http://www.gruppofrattura.it/pdf/rivista/numero34/numero_34_art_59.pdf
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author Rao Arsalan Khushnood
Sajjad Ahmad
Giuseppe Andrea Ferro
Luciana Restuccia
Jean Marc Tulliani
Pravin Jagdale
author_facet Rao Arsalan Khushnood
Sajjad Ahmad
Giuseppe Andrea Ferro
Luciana Restuccia
Jean Marc Tulliani
Pravin Jagdale
author_sort Rao Arsalan Khushnood
collection DOAJ
description A novel cost-effective alternative in the form of nano/micro carbonized particles produced from waste bagasse fibers has been explored to modify the mechanical properties and fracture pattern of the resulting cementitious composites. Carbonized bagasse particles were produced at Politecnico di Torino and characterized by Raman spectroscopy and scanning electron microscopy. When added with cement paste up to 1 wt% in six different proportions, the carbonized bagasse particles were found effective in significant enhancement of mechanical strength as well as fracture toughness. From micro-graphical observations it is evident that these heterogenic inclusions either block the propagation of micro cracks which has to deviate from its straight trajectory and has to follow the carbon nano/micro particles contour or distribute it into multiple finer cracks. Crack contouring along the carbonized particle, crack pinning, crack diversions and crack branching are the mechanisms which can explain the increase of toughness in the composite samples
format Article
id doaj-art-e92aed061dc045e38d77fa500ab95636
institution Kabale University
issn 1971-8993
1971-8993
language English
publishDate 2015-10-01
publisher Gruppo Italiano Frattura
record_format Article
series Fracture and Structural Integrity
spelling doaj-art-e92aed061dc045e38d77fa500ab956362025-02-03T00:45:10ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89931971-89932015-10-0193453454210.3221/IGF-ESIS.34.59Modified fracture properties of cement composites with nano/micro carbonized bagasse fibersRao Arsalan Khushnood0Sajjad Ahmad1Giuseppe Andrea Ferro2Luciana Restuccia3Jean Marc Tulliani4Pravin Jagdale5Politecnico di Torino, Torino ItalyPolitecnico di Torino, Torino ItalyPolitecnico di Torino, Torino ItalyPolitecnico di Torino, Torino ItalyPolitecnico di Torino, Torino ItalyPolitecnico di Torino, Torino ItalyA novel cost-effective alternative in the form of nano/micro carbonized particles produced from waste bagasse fibers has been explored to modify the mechanical properties and fracture pattern of the resulting cementitious composites. Carbonized bagasse particles were produced at Politecnico di Torino and characterized by Raman spectroscopy and scanning electron microscopy. When added with cement paste up to 1 wt% in six different proportions, the carbonized bagasse particles were found effective in significant enhancement of mechanical strength as well as fracture toughness. From micro-graphical observations it is evident that these heterogenic inclusions either block the propagation of micro cracks which has to deviate from its straight trajectory and has to follow the carbon nano/micro particles contour or distribute it into multiple finer cracks. Crack contouring along the carbonized particle, crack pinning, crack diversions and crack branching are the mechanisms which can explain the increase of toughness in the composite sampleshttp://www.gruppofrattura.it/pdf/rivista/numero34/numero_34_art_59.pdfFracture energyToughnessCarbonized bagasse fibersMicro-crackingCrack pinning
spellingShingle Rao Arsalan Khushnood
Sajjad Ahmad
Giuseppe Andrea Ferro
Luciana Restuccia
Jean Marc Tulliani
Pravin Jagdale
Modified fracture properties of cement composites with nano/micro carbonized bagasse fibers
Fracture and Structural Integrity
Fracture energy
Toughness
Carbonized bagasse fibers
Micro-cracking
Crack pinning
title Modified fracture properties of cement composites with nano/micro carbonized bagasse fibers
title_full Modified fracture properties of cement composites with nano/micro carbonized bagasse fibers
title_fullStr Modified fracture properties of cement composites with nano/micro carbonized bagasse fibers
title_full_unstemmed Modified fracture properties of cement composites with nano/micro carbonized bagasse fibers
title_short Modified fracture properties of cement composites with nano/micro carbonized bagasse fibers
title_sort modified fracture properties of cement composites with nano micro carbonized bagasse fibers
topic Fracture energy
Toughness
Carbonized bagasse fibers
Micro-cracking
Crack pinning
url http://www.gruppofrattura.it/pdf/rivista/numero34/numero_34_art_59.pdf
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AT lucianarestuccia modifiedfracturepropertiesofcementcompositeswithnanomicrocarbonizedbagassefibers
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